/* 整个游戏的样式 */

#game{
    width: 800px;
    height: 600px;
    border: 2px solid;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

/* 设置游戏背景图样式 */

#game .sky{
    width: 1600px;
    height: 600px;
    background: url('../img/sky.png');
    position: absolute;
    left: 0;
    top: 0;
}

/* 游戏大地的样式 */

#game .land{
    width: 1600px;
    height: 112px;
    background: url('../img/land.png');
    position: absolute;
    left: 0;
    bottom: 0;
}

/* 游戏提示的样式 */

.msg{
    text-align: center;
}


/* 水管的样式 */

#game .pipeup{
    background: url('../img/pipeDown.png') no-repeat left bottom;
    width: 52px;
    height: 200px;
    position: absolute;
    top: 0;
    right: 0;
}

#game .pipedown{
    background: url('../img/pipeUp.png') no-repeat;
    width: 52px;
    height: 200px;
    position: absolute;
    bottom: 112px;
    right: 0;
}


/* 小鸟的样式 */

#game .bird{
    width: 33px;
    height: 26px;
    background: url('../img/bird.png');
    position: absolute;
    left: 200px;
    top: 150px;
    background-position: -113px -10px;
    z-index: 1;
}

/* 计分的容器样式 */

#game .score{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    color: #fff;
    font-size: 4em;
    text-align: center;
    line-height: 600px;
    z-index: 2;
}

/* 游戏总分样式 */

#game .over{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, .5);
    color: #fff;
    font-size: 4em;
    text-align: center;
    line-height: 600px;
    z-index : 2;
    display: none;
}
